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Gentoo Linux Security Advisory GLSA 202209-10 |
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https://security.gentoo.org/ |
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Severity: Normal |
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Title: Logcheck: Root privilege escalation |
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Date: September 25, 2022 |
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Bugs: #630752 |
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ID: 202209-10 |
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Synopsis |
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======== |
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|
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A vulnerability has been discovered in Logcheck's ebuilds which could |
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allow for root privilege escalation. |
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Background |
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========== |
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Logcheck mails anomalies in the system logfiles to the administrator. |
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 app-admin/logcheck <= 1.3.23 Vulnerable! |
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Description |
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=========== |
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|
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The pkg_postinst phase of the Logcheck ebuilds recursively chown the |
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/etc/logcheck and /var/lib/logcheck directories. If the logcheck adds |
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hardlinks to other files in these directories, the chown call will |
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follow the link and transfer ownership of any file to the logcheck user. |
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|
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Impact |
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====== |
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|
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A local attacker with access to the logcheck user could escalate to root |
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privileges. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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Gentoo has discontinued support for Logcheck. We recommend that users |
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remove it: |
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# emerge --ask --depclean "app-admin/logcheck" |
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|
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References |
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========== |
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[ 1 ] CVE-2017-20148 |
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https://nvd.nist.gov/vuln/detail/CVE-2017-20148 |
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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https://security.gentoo.org/glsa/202209-10 |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2022 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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https://creativecommons.org/licenses/by-sa/2.5 |
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